Final answer:
The ovarian cortex is closest to the uterine tube, while the ovarian medulla is closer to the uterus, making the correct answer B) Ovarian medulla; ovarian cortex.
Step-by-step explanation:
The part of the ovary that is closest to the uterine tube (also known as the fallopian tube or oviduct) is the ovarian cortex, while the part that is closer to the uterus is the ovarian medulla. Ovarian cortex primarily consists of follicular cells and is where the follicles develop, which contain the eggs that will be released during ovulation. The ovarian medulla contains blood vessels and nerves and is located internally. The ovarian hilum is the point where nerves and vessels enter or leave the ovary, which indirectly connects with the uterus via ligaments. Hence, the correct answer to the question 'What part of the ovary is closest to the uterine tube vs uterus?' is B) Ovarian medulla; ovarian cortex.